Influence of hyperglycemia on Ca2+-Mg2+-ATPase of red blood cells from diabetic patients

Abstract
The influence of hyperglycemia on calmodulin-stimulated Ca2+-Mg2+-ATPase activity was studied in 20 diabetic subjects. A clear inverse relationship between short-term hyperglycemia as well as chronic hyperglycemia and calmodulin-stimulated Ca2+-Mg2+-ATPase activity could be demonstrated. Such a relationship could not be shown for basal enzyme activity.